Firearm.



PATENTHD SEPT. 22, 1903.

0. HAMILTON.

FIREARM.

APBLIOA'IION FILED DBO. 17, 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

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' j w s PATENTBD SEPT. 22, 1903.

g. HAMILTON.

FIREARM.

APPLICATION FILED DEO.17, 19oz.

2 SHEBTS-SHEET 2.

' no MODEL.

Ilatented September 22, 1963 PATENT Price.

OOELLO HAMILTON, OF PLYMOUTH, MICHIGAN.

FIREARM.

SPECIFICATION forming part of Letters Patent No. 739,412, dated September 22, 1903. Application filed December 17,1902. Serial No. 135,505. (No model.)

To all whom it may concern.-

Be it known that 1, 00mm HAMILTON, a citizen of the United States, residing at Plymouth, county of Vayne, State of Michigan,

ave invented a certain new and useful Im- 'provement in Firearms; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in firearms, shown in the accompanying drawings, and more particularly set forth in the following specification and claims.

In the drawings, Figure 1 is a longitudinal section through a portion of the gun-barrel. Fig. 2 is a perspective view of the extractor and other details in connection therewith. Fig. 3 is a cross-sectionalview on the line a; a; of Fig. 1. Fig. 4 is a longitudinal section through a portion of the firearm, showing the cartridge in position'to be forced into the breech by the breech-block mechanism.

One object of this invention is to provide means whereby the cartridge may be driven into the breech by the movement of the breechblock mechanism without the necessity of handling the cartridge.

Another improvement consists in forming the extractor and breech-block integral and in so arranging the parts as to simplify the construction of the mechanism controlling them. Other improvements will appear by reference to the specification and claims.

, Referring to the letters of reference shown in the drawings,A is the gun-stock,and B is the receiver, preferably formed of sheet metal and provided with depending brackets B, adapted to, engage plates secured to the stock. G is the gun-barrel, and O the breech end of the same.

D is a breech-block provided with a depending ear (Z, and E is a reciprocating liner-tube formed of sheet metal and provided at its forward end with depending ears 6.

F is a link pivoted to the depending ears (I and eat one end and to the lever G, which also serves as a trigger-guard.

H is the firing-pin,mounted within the liner of the firing-pin, which serves as a means by Y which the same can be drawn back for setting it in position for firing. This thumbpiece also serves to limit the forward movement of the firing-pin. l

H is a spring coiled around the firing-pin, the action of which drives the same forward when released by the trigger mechanism. This spring has a bearing on the collar h, secured to the firing-pin at one end and at the other end against the plates h, covering the trigger mechanism.

I is a spring, one end of which is set into an aperture at the end of the breech block. The other end of the spring rests in a shoe 2', located within the linertube B and supported by a flange engaging the adjacent walls of the tube. end is provided with a hook to engage the rim of the cartridge for the purpose of extracting the same from the breech. The end of the breech-block is beveled, as shown at cl, and the breech end of the barrel 0 at the point where the beveled end of the breechblock abuts is also inclined, as shown at c. The object of this construction will be hereinafter more fully explained and will be readily understood.

J is a U-shaped lining set into the receiver B directly back of the breech end of the riflebarrel. The walls of the lining are grooved at j to receive the corners of the wall of the receiver and are flanged at j to securely lock the lining within the receiver.

j shows an offset in the wall of the lining against which the breech-block bears, due to the action of the spring, except when lifted out of contact by the breech-block engaging the rim of the cartridge.

3' is a groove forming a channel for the reception of the firing-pin H, which projects above the groove in the breech-block.

To load the rifle, the lever G is thrown back, as shown in Fig. 4. This action withdraws the breech-block from the breech end of the rifle-barrel, leaving the channel J open to re- The breech-block D at itsforward.

ceive the cartridge, which may then be placed in it. The lever D is then thrown into the position shown in Fig. 1, which drives the breech-block forward, forcing the cartridge into the breech of the gun.

Then the cartridge is in the breech of the barrel, a further movement of the lever Gr forces the breech-block to tilt and causes the hook to ride over the rim of the cartridge and engage it. A further movement brings the inclined end of the breech block in contact with the inclined face of the breech end of the barrel.

hen the inclined end of the breech-block D is brought in contact with the breech of the barrel, the lever Gr and connecting-link F are at the limit of their movement, and the pivotal point between the lever and the link having passed beyond the pivot of the operating-lever G the same is securely locked.

WVhen the breech-block is again retracted by the operation of the lever G, it carries with it the empty shell, the breech-block being lifted from the shoulder j of the lining by the rim of the cartridge. The moment the shell is withdrawn from the breech the action. of the spring I on the breech block causes the breech-block to give the shell a quick turn, as the bearing of the breech-block is directly on the rim of the shell, and by this action it is flipped out of the pocket or lining J. The breech block then bears directly against the shoulder j of the lining. It will thus be seen that the breech-block before engaging the rim of a cartridge bears directly against the shoulder j through the action of the spring I. WVhen the hook at the end of the breech-block engages the rim of the cartridge, the breech-block is tilted and held out of contact with the shoulder j,while the shell remains in the breech.

In extracting the shell from the breech the pressure of the breech-block on the shell, due to the action of the spring, causes the rim of the shell to drag on the wall of the receiver and the friction incident thereto causes the shell to turn at an angle and be discharged from the receiver by the pressure of the breech-block. After the discharge of the shell the breech-block is again in contact with the shoulder j of the lining.

Having thus described my invention, what I claim is 1. In firearm construction, a barrel, a receiver, a reciprocating tube located within the receiver and the breech-block pivoted at its rear end to said tube, said breech-block provided with a hook to engage a cartridge-rim whereby the same may be extracted from the breech, substantially as described.

2. In firearm construction, a barrel, a re ceiver, a reciprocating tube located within the receiver, a breech block pivoted at its rear end to said reciprocating tube and provided at its forward end with a hook to engage the rim of a cartridge whereby the same may be extracted from the breech, and a spring controlling the movement of the breech-block on its pivot, substantially as described.

3. In firearm construction, a barrel, a receiver for the end of said barrel, a reciprocating member located within the receiver carrying the trigger and firing mechanism, a breech-block pivoted at its rear end to said reciprocating member, the forward end of said breech-block provided with a hook to engage the rim of a cartridge whereby the same may be extracted from the breech, and a spring to yieldingly resist outward movement of the breech-block on its pivot and to permit its hook to ride over, and engage, the rim of the cartridge, substantially as described.

4. In firearm construction, areceiver, abarrel set in said receiver, a reciprocating member adapted to travel within the receiver, a breech-block pivoted at its rear end to the end of said reciprocating member, a spring, one end of which enters a recess in theend of the breech-block, the other end being held by a shoe housed within the reciprocating member, said breech-block being provided at its forward end with a hook to engage the rim of a cartridge whereby the same may be extracted from the breech, substantially as described.

5. In firearm construction, areceiver, abarrel set in the end of the receiver, a reciprocating member traveling within the receiver, a breech-block pivoted at its rear end to the end of the reciprocating member and a U -shaped lining located directly back of the breech adapted to guide the cartridge into the breech when the breech-block is operated, substantially as described.

6. In firearm construction, a receiver, abarrel set in the forward end of the receiver, a reciprocating member located within the receiver, a breech-block pivoted in the end of the reciprocating member provided with a hook at its forward end to engage the rim of the cartridge, and a U-shaped lining located within the receiver directly backof the breech, said lining provided with a shoulder j to receive the rim of the cartridge, substantially as described.

7. In firearm construction, a barrel set in the forward end of the receiver, a reciprocating member located within the receiver carrying the firing mechanism, a breech-block pivoted in the forward end of the reciprocating member, said breech-block grooved to receive and guide a firing-pin and a U -shaped lining located directly back of the breech end of the barrel, said lining also grooved to guide the firingpin and provided with ashoulder on which the rim of the cartridge is designed to travel, substantially as described.

8. In firearm construction, a receiver, a barrel set in the receiver, a movable member E reciprocating within the receiver, a breechblock pivoted in said reciprocating member provided with an extractor at its forward end, a channel-lining located within the receiver directly back of the breech end of the barrel,- and a spring to control the movement of the breech-block upon its pivot whereby when the shell is withdrawn from the breech the pressure of the breech-block on the shell due to the action of the spring will cause the shell to drag on the wall of the receiver thereby turning the shell at an angle and discharging the same, substantially as described.

9. In firearm construction, areceiver, abarrel set in the receiver, a movable member E reciprocating within the receiver, a breechblock pivoted in the reciprocating member provided with an extractor at its forward end,

a channellining located within the receiver directly back of the breech end of the barrel, said channeldining provided with shoulders j and a spring to control the movement ofthe breech-block upon its pivot, whereby when the shell is withdrawn from the breech the barrel set in the receiver, a breech-block reciprocating within the receiver provided with an extractor at its forward end, and means for giving the breech-block a lateral movement to discharge the shell when the shell is with drawn from the breech, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

OOELLO HAMILTON.

l/Vitnesses:

S. E. THOMAS, H. E. VILLEROT. 

